linux-kernel - Re: [REGRESSION]: hibernate/sleep regression w/ bisection

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Date:	Fri, 4 Nov 2011 13:44:01 -0400
From:	Jerome Glisse <j.glisse@...il.com>
To:	Andrew Watts <akwatts@...il.com>
Cc:	Tejun Heo <tj@...nel.org>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	linux-kernel@...r.kernel.org, linux-pm@...ts.linux-foundation.org,
	David Airlie <airlied@...ux.ie>,
	dri-devel@...ts.freedesktop.org
Subject: Re: [REGRESSION]: hibernate/sleep regression w/ bisection

On Fri, Nov 04, 2011 at 12:34:58PM -0500, Andrew Watts wrote:
> On Fri, Nov 04, 2011 at 09:14:31AM -0700, Tejun Heo wrote:
> > Andrew, can you please kill the X server after the hang and see
> > whether that brings the system back?  I think sshd should still work
> > and if not you can write a script to kill the X server after 30secs
> > after resume (and kill that script if resume succeeds).
> 
> Hi Tejun & Jerome.
> 
> Tejun: My script killed X after a small wait from a bad resume. I am returned 
> to the funcioning calling console. I can then re-start X and all subsystems
> seem to working fine.
> 
> Jerome: I posted a post-bad-resume dmesg snippet with a GPU lockup warning
> and trace here:
> 
>    http://article.gmane.org/gmane.linux.kernel/1210057
> 
> Did you need to see more?
> 
> Thanks.
> 
> ~ Andy
> 

Attached patch might hide the issue.

Cheers,
Jerome

View attachment "0001-drm-radeon-kms-make-sure-GPU-is-idle-and-working-at-.patch" of type "text/plain" (929 bytes)